Car-ladder.



WILLIAM J. BOHAN, 0F VST. PAUL, MINNESOTA.

CAB-LADDER.

Original application filed July 12, 1915, Serial No. 39

Specitloation of Letters Patent.

Patented Aug. 6, 1918.

,288. Divided and this application filed April 7,191?.

Serial No. 160,382.

Bv it known thatV l, Wnmrnr J. HUMAN, a vitizvn of tliv Unitvd Stalvs.rvsidingz nt Si. lnul. in thv vounty o'f llamsvy and Stute oflilinnvsota. havv invenlvd a certain new nml nsvtnl lmprovvment in('arlnnldvrs. ot.' whivh thv followingr is a full, vlvar, vonvise, :intlvxavt tlvsvription, rvf'vrvnvv living had lo thv avvompan ving drawingsforming a part of this s|ivvilivntlom 'lhis invvntion rvlatvs toimprovements in var lndilvrs.

yl`hv olijvvt. ot' thv invention is lo provide au vxlrvmvl)v rigid undvflivivnt, )'vt simple laihlvr vonstrnvt ion mol'v particularly adaptvdfor all-stvvl ilvight van.v and whvrvin the ladilvr A and portions ofthv vnr frnme inutil-t ally hravv :ind strvnglhvn vnch othvr. Thisapplivation vonstitutvs a division of my 4prior applifalion No. 39,288.filed 'lilly' 12, 1915, for improrvnant in freight, vars.

ln thv drawin;r formingr a pnrt, of this: Hpvvilivnt ion. ltg'urv l isan vnd vlvvntion of onv vnd of a var showing my improvements invonnvvtion thvrvwlli. And Fig. 2 is n horizontal detail lwvetzionnlvivw, taken on the linv of Fig. 1,

In said drawings. thv vnd of thv. enr is shown as having a singleelvmvnt lient. to form voi-nvr posts 10-l0, ond posts 11-11, diagonal[waving porlions 12--12 and an ilppvr vross vonnvvting' svvtion 13 forthe` vnd posts il. Said mvmlivr A. ns described in my said applivntionNo. 39,288, is prefvralrly l'ormvd from u vhannvl, the outer-` mostllnngv lhvrvol` la-in, lr llattvned whvvo the livnilS ovvm'. :isimlivatvd nt l4-1-l. The l'rnmvwmk thus formvd h v the member A harivvtvd or othvrwisv rigidly secured thvrvlo hvvt'I mvtnl sheathing l5und diSliod top platv l' to whivh tho roof sheets 17 ma)Y lasvvnrvil. As(lvHvriln-,il in Huid :ipplivation. thv framework for thv sides of thvvar is similarly formed by bending a vhannvl into vvrtical posts anddiagonal ln'avvs, and in Fig. 2 of the drawing. a sevtion of the endpoety is indicated at. I8. Whvro the two vorner posts of n cnr end undvar sidvs moet., thoflange ofonn ofsad posts is hvnt to ioetion parallvlwith the web of thv vhannvl. :n1l indivalvd nl 19 in Fig. 2 mult saidllvnl down llangv is rirvtvd to the adjavvnt tlangv .10 of the otherpost. These rii'vtvd llangrvs 19 and Q0 form n common stile t'or thvsidv and end ladders, the side ladd i' von\pri,-sin; ;r a series ofrungs 21 and the vnd laddvr a similar series of rungs 22. Said' rnngs 2land 22 are eecured to the stile at thv vorner and at their opposite endsto vvrtivally extending Stiles 23 and 24.

'ith the arrangement above described, it is apparent that thv rungs ofthe two laddvrs liravv and strengthen the corner posts of thv var :indthe latter in turn provide n vommon lalilv of rigid construction for theladders. thvrvliy simplifying the construc-` tion and minimizing thenumber of parts rvipiirvd for theI ladders.

l vlaiin:

l. ln var construction, a vhannel-Slmpvd rvrtivnl post nt one edge ofthe cnr end, u svv'ond i'vltical post at the end of the car sidvadjavvnt lwid first named post, the tiangvof said two posts beingriveted to- Igfvthvr. and sidv and vnd ladders, thv rnngs ol saidladders :it thosv ends located at. the vornvr ot' thv. var beingrsevnred to Said rivvt'vd flanges.

2. 1n var vonhftruction, the combination with n vornvr pontV formed livsecuring to-V iretlivr projecting portions o the adjacent vertical postsof n vnr Side and cnr end, of side and vnd ladders, said corner postform ingl a common stilo projecting outwnrdly bevond the adjacent.surface of the var for said ladders, thvJ rangs of said ladders beingsvvurvd to the said corner post and bracing it from both sides.

3. In n cnr ladder' construction, the com hination with side ladder'andan end 1ML dvr located at the vorner of the cnr, each of said ladderscomprsin a. series of rnngs sind n pair of Stiles, the stili at thecorner of the var being common to both ladders, said stile forming alsothe corner post of the car, `all 4ot said Stiles being` formed bycommercial bars di osed on the outside ofthe csu.

1n witness that. T claim the foregoing I have livrenntosnbscribed myname this 22nd dai' of lVBiI'Cll, 1917.(

' WM. J. ROHAN. Witnvsses:

(ino. F. ENnIoe'r'r, Tuoi-i. R. WILIJAMB.

